Sectional lip tile



Dec. 7 1926.

. N. MAMBOURG SECTIONALVLIP TILE FildMarch 19 NvE un Nes for ATTDPNE %naDec. 7,19261 10,1

uNir o sures PATENT `eriCE;

NESTOR MAMBOURG, OF LANCASTEF OHIO, ASSIGNOR TO 'TI-IE LIBBEY-OVENSS-IEET v GLASS COMPANY, OF TOLEDO, OHIO, A COB'EORATION OF OI IIO.

SEOTIONAL LIP TILE.

Application filed March 19, 1925. Serial Ne. 16 654 The presentinvention relates to sheet glass rents and radiated heat which otherwiseapparatus, and has particular reference to would strike the sheet Theheat currents or a new type of lp-tile for use in connection rays comefrom the tank :turnace 8 on one therewth, side ot the sheet and frombelow the pot 7 An important object of the invention is to .in thechamber 14. The entire pot is heated 60 provide a lip-tile tor use inconnection with by means of burners disposed in the chamber sheet glassapparatus, the said lip-tile be- 14. In the Colburn patent the lip-tilesare ing so construeted that a portion thereot arranged approximately asshown in Fig. 1, (zan be replaced without interfering with but in theColburn patent and in all'of the the normal operation of the saidmachine. machines used under the Colburn patent, 05

Another object of the invention is to proeach lip-tilehas beenoonstru-cted as a single vide a lip-tile ot this' nature comprising aunit. The lip-'tiles are supported from above plurality ot parts wherebythe main part or by means e ot' a pipe or cable extending i body portionot the lip-tile can be mount'ed through a suitable aperture formed in apor 151 in position, other parts ot the tile being so astion thereof.They are usually forned from 70 sociated with the body portion that theycan a retractory clay material 'and are of a easily be removed andreplaced without inlength substantially the same as the width terterenceto the drawing of a sheet. ot the pot which Varios fromthree feet up'-Other objects 'and advantagesof the inward. Due to the extreme lengthand hugevenon in become apparent. d ring the `ness of the lip-tiles'ne'cessitated to give 75 course of the following' description. strengththereto, considerable 'difliculties In the drawings wherein likenumerals have been encountered due to cracking and are employedtodesignate like parts through breakage of the lip-tiles with result thatout the samei 1 pieces of the clay have dropped into the pot Fi 1 is afr me t ry verti al longtud and caused eonsiderable dam'age. Furthernalsection through a portion of a sheet more, theheatpreSGnt around thedraw-pot drawing apparatus illustrating my inven- '7 makes it anexceptonally tedious' job to fl i use7 p 4 I e M remove and replace thelip-tiles without stop Fig. 2 is a transverse vertical section png thedrawing of the sheet 5; e thereot,` I v p *In the present inventi-on ithas been the Fig; 3 is a fragmentary sectional vi w of aim to design alip-tile which may be rigidly slightly modified form, and t supported inposition above the source ot Fig. 4 is a sectionalview of still another'glass 6 andwhich is formed in sections so f i that the lip which is thepart that usually 3:3 .The invention is herein illustrated as usedCracks or breaks may easily be removed and 90 in conjunct-ion with themachine disclosed in replaced. I the Colburn Patent No. 1248309, grantedIn F'g. 1 the lip-tles are shown as com- December 4, 1917 whereina'sheet 5 is drawn prsing a body portion 15 and what may be 'from asource of glass 6 disposed in a drawtermed a l1p-portion 16. The bodyportion pot 7, and being in open communication with is provided with alongitudnally extending %e a tank furnace 8, by which means the sheetopening 17 through which a suitable support source or meniscus 9 iscontinuously replen- 18 in the nature ot an internally eooled pipeished. Sheet edge engaging rolls 10 are promay be run. Suitable strapmembers 19 envided to build up an edge and to retard the gage the pipe18, and are earried by the movement thereot sutfieiently to create anmember 20. e V V edge on the sheet capable of maintaining the As isshown, the body portion 15 is prosame to width after it has been formed.The vided with a longitudinally extending sheet is bent over a so-calledbending roll groove 21 adapted to receive a tongue 22 of 11 whereby thesheet may be run'in a horithe 1ip16. The curvature of the tongue 22zontal plane over an idler roll 12, draw table approximates thecurvature ot the groove 21. 105 13, and through an annealing leer whichis An abutment 23engages another portion of not shown. p A i e the lip16 to hold the lip rigdlyin position.

The Colburn patent also disclosed the use, Thelip 16 may be providedwith a pluot cover-tiles or socalled lip-tiles to protect rality ofapertures 24 in which may be inthe sheet 5 in its Vertical run from heatcurserted prongs 25 carried by a grapple 26 110 indicated in dottedlines. The grapple 26 may be. raised, thus disengagng the lip 16 fromthe body portion 15. In this manner the lip may very easily be replacedwhen desired. 'The lip portion 16 may be formed in either three or toursections so that they may be slipped onto the body portions and slippedoff with ease. In this instance the grapple 26 may be disposed with.

Figs. 3 and l show a slightly modified construction, but it will be seenthat the lip portion 27 has engagement with the body portion 28 similarto the type of tiles shown in Fig. 1.

Although the lip tiles have been modified to tacilitate removal of thelip portions, it is to he understood .that they can be arched to.function exactly as the present type of .tiles in machines constructedin accordance with the Colburn process. It is seldoin that the cracks orbreaks begin in the body portions ot the tiles, butas a rule the crackor other fracture begins in the lip portion and extends through thebody. This 'fact is taken advantage of in the present invention byseparating the lip and the body and making it possible to easily andquickly replace a lip with a minimum of expense and time.

It is to be understood that the form of the invention herewith shown anddescribed is to be taken as the pre'erred embodiment ot the same, and.that various changes in the shape, size. and .arrangement of parts maybe resorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Claim's:-

1. In sheet glass apparatus, means for drawing a sheet from a mass ofmolten glass, and a lip-tile arranged above the molten glass andcomprising a body portion and a removable lip portion.

2. In combination with a sheet drawing apparatus, of a lip-tilecomprising a body' gagement.

e i. In combination with a sheet drawing apparatus, of a lip-tilecomprising a body portion having a groove therein and a lip portionhaving means adapted to be received within said groove.,

5. In combination with a sheet drawing apparatus, of a sectionallip-tile comprii ing a body portion and a lip portion, the body portionhaving a groove therein and the lip portion carrying a tongue adapted tobe received in the said groove whereby the lip may be supported inoperative position. i

6. In combination with a sheet drawing appara'tus of a lip-tilecomprising a sta- .tionary body portion and a removable lip portion.

7. In combination with a sheet drawing apparatus, of a lip-tilecomprising a stationary body portion and a removable lip portion, thebody having a groove therein and the lip carrying -a ton 'ue adapted tobe received in the said groove, and an abutment carried by the body andengaging the lip.

Signed at Lancaster, in .the County of Fairfield, and State of Ohio,this 16th day of March, 1925.

' NESTOR MAMBOURG.

